Airport Road Development
July 2024
Benefits:
- Design from Tensar+ mitigated risk of differential settlement
- Contractor found a use for 35,000 cubic yards of asphalt millings
- Use of recycled asphalt pavement saved $2 million in aggregate costs
Project Details:
- General Contractor: Principle Construction Corp.
- Installed by: Plote Construction
A heavy-duty truck parking lot was designed to serve several adjacent distribution centers in Elgin, Illinois. Differential settlement was a concern due to the site’s previous use as a landfill, so the site was initially graded by placing 3 to 8 feet of fine screening material overtop and waiting a year to allow it to settle, then placing more as necessary. The engineer connected with a Tensar representative about designing a cost-effective flexible pavement section.
Tensar engineers used the Tensar+ asphalt pavement module to design a section that could meet the client’s needs. A two-layer InterAx geogrid and CA-6 aggregate system was chosen to mitigate the risk of differential settlement and provide a cross section with the capacity required for heavy-duty truck use. The contractor had a large stockpile of recycled asphalt millings they wished to use in the first lift of aggregate, and the substitution of this material saved close to $2 million in aggregate cost over the 150,000 square yard site while reducing trucking trip distances at the same time.
